What's your tolerance for reliability? Do you care how much money you spend in the next few years? (probably less on the S6) Is exclusivity really that important when you're out driving around with the family? Will your wife be out driving it with the kids? Is it OK when it goes into limp mode because the air box starts to leak? Will she freak out? Plenty of other examples...I think the S6 might be a better option for you right now, even at more than twice the money. I think the depreciation has just about bottomed out on the RS6, the S6 will still continue to fall, but resale will be better on the S6 too...